neshta | b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 04:39

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General

Target

b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
Size

1.5MB
MD5

546ce74e556c10ba47338c75f4ace22f
SHA1

3340e0a017aa3581fbb5a55a723978d15b984921
SHA256

b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf
SHA512

4289b3d0d82a679b8561a9a036d79884af305dfb3333f6ad473f7cc1300dee062c50f1809ef953881d19e2edeedb811efe6f797f6f42d39860a67032f6a77449
SSDEEP

24576:tE/a5cYcrsjcKcq2PUD81kVycD3OQacEmAf7ppsLBOHh2xtAC+:eSxncjQDxaMAyA

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 3 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010314-10.dat	family_neshta
behavioral1/memory/2236-86-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2236-88-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta

Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta
Neshta family
neshta

Executes dropped EXE 1 IoCs

pid	Process
2728	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe

Loads dropped DLL 2 IoCs

pid	Process
2236	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
2236	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2728	2236	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe	30
PID 2236 wrote to memory of 2728	2236	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe	30
PID 2236 wrote to memory of 2728	2236	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe	30
PID 2236 wrote to memory of 2728	2236	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe	30
PID 2236 wrote to memory of 2728	2236	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe	30
PID 2236 wrote to memory of 2728	2236	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe	30
PID 2236 wrote to memory of 2728	2236	b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe	30

C:\Users\Admin\AppData\Local\Temp\b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
"C:\Users\Admin\AppData\Local\Temp\b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Users\Admin\AppData\Local\Temp\3582-490\b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

Filesize
547KB

MD5
cf6c595d3e5e9667667af096762fd9c4

SHA1
9bb44da8d7f6457099cb56e4f7d1026963dce7ce

SHA256
593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

SHA512
ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

Download Submit
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

Filesize
252KB

MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

Download Submit
\Users\Admin\AppData\Local\Temp\3582-490\b911d1f71c89509897ab5216377d29272c5d8ef1e42425d2f8a62cb89d219baf.exe

Filesize
1.4MB

MD5
0d952291d5a8c9a89507b9026902e73d

SHA1
1206a7fcac73817cff9d5e38201c8db3c04c2ca7

SHA256
4a8880b2b29d79b1ad446cf0e1c82e138a973df9221457ca9259bc3cd88f60e2

SHA512
b24cc2b92ae38f923148166990b21b992747e8133244519391b01819a2029e9cc050e7c4f82c6234dccf9bebaa79370879a7edc08d13dc2a679ef716ab331074

Download Submit
memory/2236-86-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2236-88-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2728-11-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2728-85-0x0000000000400000-0x0000000000577000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads